Bacterial vaginal flora in Implanon users

Bacterial vaginal flora in Implanon users

G.G.G. Donders (1,2), I. Riphagen (1), T. Van den Bosch (1)

Departments of Obstetrics and Gynaecology of (1) A.Z. Heilig Hart, Tienen,

Belgium, (2) U.Z. Gasthuisberg, Leuven, Belgium

From 160 women presenting for follow-up 3 to 12 months after insertion of an

Implanon1 contraceptive a vaginal smear was examined for detection of bacterial

vaginitis and disturbance of lactobacillary defence. Comparison was made with

117 control women not using contraception. There was no statistical difference

in the occurrence of bacterial vaginosis or aerobic vaginitis between users and

non-users. However, women having an implanon had more often abnormal vaginal

flora (abnormal lactobacillary grades) than women not on contraception

(p=0.0024), especially during the first three months after placement. The

lactobacillary grades improved gradually to normal with longer implanon use


Conclusions: Abnormal vaginal flora is more often encountered during

the first three months after the placement of implanon, but this association

gradually disappears thereafter. This association may may linked to the

increased likelihood of prolongued vaginal bleeding. Bacterial vaginosis or

aerobic vaginitis is not more frequent in implanon users.

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